1 / 23

Amateur Radio on Board

Amateur Radio on Board. Scott Honaker – N7SS. Local Communications. Marine VHF – 25 watt power limit Not to be used ashore CB - 4 watt limit / 40 channels Overrun with illegal high power stations FRS - ½ watt power limit / 14 channels Limited range and can be very crowded

Thomas
Télécharger la présentation

Amateur Radio on Board

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Amateur Radio on Board Scott Honaker – N7SS

  2. Local Communications • Marine VHF– 25 watt power limit • Not to be used ashore • CB - 4 watt limit / 40 channels • Overrun with illegal high power stations • FRS - ½ watt power limit / 14 channels • Limited range and can be very crowded • GMRS- 5 watt limit / 23 channels • Requires $75 license Amateur Radio on Board - N7SS

  3. Long-Distance Communications • Cellular Phone– ½ watt limit • Limited coverage and support outside US • Roaming charges can be huge (internationally) • May support data • Satellite– International coverage • Expensive (large) equipment and connect charges • Allows data transmissions for additional $$$ • Marine HF SSB – International coverage • Requires $155 station license and $55 operator license • Supports Sailmail at $250 per year Amateur Radio on Board - N7SS

  4. Why Amateur Radio? • Reliable, versatile communications • Low cost • Several technologies of interest • HF SSB – Long distance voice • HTs - High power portable radios • Autopatch – Telephone connectivity • IRLP/Echolink – Voice repeaters connected via the Internet • APRS – Amateur Position Reporting System • Winlink – Email via HF/VHF Amateur Radio on Board - N7SS

  5. Amateur HF SSB • More spectrum/bands available • More power – 1500 watts! • Most nets on amateur frequencies • Voice and data modes Amateur Radio on Board - N7SS

  6. Amateur HTs • Up to 7 watts available • 100s of “channels” on several bands • Repeaters extend range • Better antennas available • Can be used anywhere • Repeater-based nets X Amateur Radio on Board - N7SS

  7. Amateur Autopatch • Adds access to phone lines • Must “subscribe” to repeater • Generally inexpensive $15-$50 per year • No business messages • 911 available on most machines without membership Amateur Radio on Board - N7SS

  8. IRLP / Echolink • Links repeaters via the Internet • Allows “worldwide” coverage on VHF • Thousands of nodes available • Echolink allows connecting via computer directly – no radio required • More information at • http://www.echolink.org/ • http://www.irlp.net/ Amateur Radio on Board - N7SS

  9. Automatic Position Reporting System (APRS) • Beacons position every few minutes • Allows status text (“Off to Nanaimo”) • Supports outbound 1-liner Emails • NWS weather warnings • Location available via radio or Internet almost instantaneously • http://map.findu.com/callsign Amateur Radio on Board - N7SS

  10. APRS Continued • Real-time weather from local stations • Supported on multiple computer platforms • Available via satellite/ISS and HF • More information at • http://www.aprs.org • http://nwaprs.info Amateur Radio on Board - N7SS

  11. APRS Map from APRSPoint Amateur Radio on Board - N7SS

  12. APRS Weather on FindU.com Amateur Radio on Board - N7SS

  13. Winlink 2000 • Designed as HF Email system for boaters • Similar to subscription Sailmail service • Longer daily transmission time-limit than Sailmail • No service fees required but no business traffic allowed • Includes APRS-style position reporting • Downloadable “bulletins” with weather, news, instructions, piracy information, etc. • Worldwide coverage Amateur Radio on Board - N7SS

  14. Winlink 2000 Mailbox Nodes Amateur Radio on Board - N7SS

  15. Winlink 2000 - Continued • Uses Airmail Email client software or pipe messages to Outlook/Outlook Express • Can also be used with dial-up or direct Internet connection in port • Allows binary attachments • Best performance requires SCS radio modem at nearly $1000 Amateur Radio on Board - N7SS

  16. Winlink Station Amateur Radio on Board - N7SS

  17. Emergency Communications • Aircraft Radios (121.5 MHz) • Monitored by aircraft and satellites • EPIRBs (406/121.5 Mhz) • VHF Channel 16 (Channel 70 with DSC) • HF SSB 2182kHz • Amateur Radio • “Multimode” rigs – very versatile • APRS – Emergency mode can send position • Autopatch allows 911 access Amateur Radio on Board - N7SS

  18. How to Get Licensed • Three license classes – Technician, General and Amateur Extra • Technician license allows VHF/UHF bands • General class license required for access to HF bands • Written test required for each license class • Tests administered locally with Volunteer Examiners (VEs) for $14 fee • License valid for 10 years before renewal Amateur Radio on Board - N7SS

  19. Exam Topics • FCC Rules and Regulations • Modulation Techniques (AM, FM, SSB, CW) • Radio Propagation • Basic Electronics • Transmitter/Receiver Components • Repeater/Satellite Operations • RF Safety Amateur Radio on Board - N7SS

  20. Exam Info • Published multiple choice question pool • 35 of 525 questions for Technician • 35 of 438 questions for General • 50 of 818 questions for Extra • Technician valid until 6/30/2006 • May get a little easier • General valid until 6/30/2007 • Will get more difficult with removal of code requirement Amateur Radio on Board - N7SS

  21. Exam Preparation Materials • Books from ARRL, W5YI (Gordon West), even Ham Radio for Dummies • http://www.arrl.org • http://www.w5yi.org • Practice exams on http://www.qrz.com • Ham University software from http://hamuniversity.com/ • Study guides and band plans on http://www.microhams.com Amateur Radio on Board - N7SS

  22. Amateur Classes/Testing • ARRL • Microhams • http://www.Microhams.com • Radio Club of Tacoma • http://www.w7dk.org • Mount Baker Amateur Radio Club • http://www.qsl.net/k7skw • Tests available somewhere every week • http://www.mikeandkey.org/education.htm Amateur Radio on Board - N7SS

  23. We’ll be listening for you… Amateur Radio on Board - N7SS

More Related